AP Stats Chapters

AP Stats Chapters

12th Grade

15 Qs

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AP Stats Chapters

AP Stats Chapters

Assessment

Quiz

Mathematics

12th Grade

Practice Problem

Hard

Created by

Anthony Clark

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15 questions

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1.

FILL IN THE BLANK QUESTION

1 min • 1 pt

_____________________ is the use of a regression line for prediction outside the interval of x values used to obtain the line.

2.

MULTIPLE SELECT QUESTION

1 min • 1 pt

The ___________________ measures the percent of the variability in the response variable that is accounted for by the least-squares regression line.

coefficient of determination

coefficient of relaxation

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of the following definitions are true...

Points with high leverage in regression have much larger or much smaller x values than the other points in the data set.

An outlier in regression is a point that does not follow the pattern of the data and has a large residual.

An influential point in regression is any point that, if removed, substantially changes the slope, y intercept, correlation, coefficient of determination, or standard deviation of the residuals.

All of the above

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

What equation for the LSRL would be most reasonable for this data?

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A student's heartrate after the walk will be 1.58 times what their resting heartrate is. 

If a student's resting heartrate increases 1 bpm, their heartrate after the walk is predicted to decrease 26.16 bpm

If a student's resting heartrate increases 1 bpm, their heartrate after the walk is predicted to increase 1.58 bpm

A student's heartrate before the walk is predicted to be 26.16 bpm lower than after the walk. 

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What type of correlation exists between the number of people that go to the pool and the temperature outside.

positive

negative

no correlation

unknown

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The scores on a statistics exam had a mean of 81 and a standard deviation of 9. One student was absent on the test day, and his score wasn't included in the calculation. If his score of 84 is added to the distribution of scores, what would happen to the mean and standard deviation?

mean will increase, standard deviation will increase

mean will increase, standard deviation will decrease

mean will increase, standard deviation will stay the same

mean will decrease, standard will decrease 

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